Spring phenology (i.e., start of season, SOS) has shifted earlier in response to warmer temperatures. However, the respective influences of daytime and nighttime temperatures on SOS changes remain poorly understood. Here we characterized the responses of satellite-derived SOS to minimum temperature (Tmin) and maximum temperature (Tmax) across Appalachian Trail regions in the Eastern United States during 2000-2013. We found SOS responded differently to Tmin and Tmax at 81.5% of the study area. Furthermore, the SOS responses to Tmin and Tmax both changed across space, and specifically, these two responses showed significant divergent trends from cold to warm regions (P
Revised: December 10, 2019 |
Published: February 15, 2020
Citation
Meng L., Y. Zhou, X. Li, G.R. Asrar, J. Mao, A.D. Wanamaker Jr., and Y. Wang. 2020.Divergent responses of spring phenology to daytime and nighttime warming.Agricultural and Forest Meteorology 281.PNNL-SA-143593.doi:10.1016/j.agrformet.2019.107832